Permissions, Privileges, and Access Controls in Cisco IOS XE - CVE-2020-3141
Published: September 24, 2020 / Updated: October 1, 2020
Vulnerability identifier: #VU47238
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3141
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to a lack of input and validation checking mechanisms for certain HTTP requests to APIs on an affected device. A remote authenticated attacker can send a specially crafted HTTP request and execute CLI commands or configuration changes as if they were an administrative user.
Affected software
Cisco IOS XE
How to mitigate CVE-2020-3141
Install updates from vendor's website.
Cisco IOS XE - addressed in versions Amsterdam 17.3.1, 17.3.0.212, 17.3.1, 17.3.1.10, 17.4.0.73